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How to determine the coordinates of a point on a photo/image displayed in a win-form picture-box at run time?
Hello bros and sis, I've done a bit C# win-form programming but totally am a newbie when it comes to win-form graphics. I am supposed to draw some rectangles acting as photo frames on this graphic image of a family tree. That's done with no problem - but the arrangement is fine only if my family tree is displayed at a fixed size << which allows me to determine the x-, y- coordinates of point A, B, C at design time (Please see TreeBefore Attachment) - These overlay rectangles will do something when I click on them per project requirement.
Picture 1: Family Tree PictureBox - TreeBefore
Now my family tree picture-box is docked (dock-style is set to "fill") and the Size-mode of the picture-box is set to "zoom" so that the family tree can be automatically re-sized when expanding or contracting the form, also per requirement. So far so good, no coding involved because I come across picturebox's client rectangle computing but it is not in use here. However, the trade-off I guess is that when I run my program the family tree is no longer displayed at the real physical dimensions, one time the window form bigger, the other times it'd be smaller, thus all my drawn rectangles are out of place. (Please see TreeAfter Attachment)
Picture 2: Family Tree PictureBox - TreeAfter
In both situations, picture 1 and 2, how can I determine the X, Y coordinates? Is this X, Y computing a good approach for re-sizing my rectangles in that they can be drawn proportionally to the size of the family tree? is there any alternatives?
I really need some help. Thank you.
TreeBefore.png
TreeAfter.png
Picture 1: Family Tree PictureBox - TreeBefore
Now my family tree picture-box is docked (dock-style is set to "fill") and the Size-mode of the picture-box is set to "zoom" so that the family tree can be automatically re-sized when expanding or contracting the form, also per requirement. So far so good, no coding involved because I come across picturebox's client rectangle computing but it is not in use here. However, the trade-off I guess is that when I run my program the family tree is no longer displayed at the real physical dimensions, one time the window form bigger, the other times it'd be smaller, thus all my drawn rectangles are out of place. (Please see TreeAfter Attachment)
Picture 2: Family Tree PictureBox - TreeAfter
In both situations, picture 1 and 2, how can I determine the X, Y coordinates? Is this X, Y computing a good approach for re-sizing my rectangles in that they can be drawn proportionally to the size of the family tree? is there any alternatives?
I really need some help. Thank you.
TreeBefore.png
TreeAfter.png
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See this SO thread for an approach to converting coordinates:
stackoverflow.com/question
stackoverflow.com/question
but it would be much simpler if you could create a picture with the "labels" already added before it is loaded to the picture box.
Sara